| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a treatment refining method for a copper-containing raw material by which copper can be efficiently recovered at high grade from industrial waste and waste containing valuables such as copper. <P>SOLUTION: The treatment refining method for a copper-containing raw material comprises at least: a first step where valuable raw materials containing copper, noble metals, nickel, iron, antimony or the like are subjected to molten reduction by a shaft furnace in a coke bed system together with a solvent and cokes to be separated into a molten metal mainly made up of copper and iron and molten slag mainly made up of calcium oxide, silicon dioxide, alumina and iron oxide; and a second step where, after the extraction of the molten metal produced in the first step to an oxidizing furnace in the following step, calcium carbonate is added to the molten metal in the oxidizing furnace, an oxygen-containing gas is blown into the molten metal, and the main impurities such as iron are formed into slag, and are extracted from the furnace. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
